Answer:
B) of the availability of farmland.
Explanation:
During the 19th century, many settlers moved into the American West influenced by the availability of farmland that was fueled by the Louisiana Purchase, the Gold Rush, the Oregon Trail, and Manifest Destiny.
All of these aspects influenced people to believe that moving west was going to bring them and the nation a new life. The land was cheap during that time and people received reports that the West was a land of opportunity with gold, solver, fruitful land.
